STMicroelectronics L7292
The L7292 is a power management device designed for consumer applications. The device communicates with the µController via an I2C serial interface operating at clock speeds up to 3.4 Mbit/s. The regulators operate at 1.3 MHz switching frequency and enter automatically in the PFM operation to maintain high efficiency over the entire load current range.FEATURES
● Key specification – Vin range from 2.7 V to 5.5 V● Interface – Two-wire I2C serial interface supports 3.4-Mbit protocol (high speed mode) – 8-bit register bank – Random and Sequential Read modes – Automatic address incrementing
● Programmable buck regulators – Regulators with programmable DC set point and soft-start – Buck regulators include integrated PMOS and NMOS switching elements – Up to 90% efficiency – PWM and PFM modes – Two pins to select four sets of DC voltages – ± 1% feedback voltage accuracy – All regulators with auto discharge function on reset. – Programmable bucks
● Support functions
● 128-bit EEPROM for: – Default Vout – Power up sequence – Reset IC delay time – Regulator enable
● Integrated voltage monitor with digital filters
● Thermal protection
● Package: VQFN 5 x 5 x 0.9 40L Datasheet - production data
APPLICATIONS
● SSD (Solid-State Drive), portable phone, etc.DESCRIPTION
Five bucks provide voltages for the µController and Flash memory with efficiency up to 90% in light-load condition.